Flour-bolter.



No. 658,700. Pa-tanfed Sept. 25, I900. E. T. BUTLER.

FLOUR BOLTER.

Application filed Jan. 27, 1900.)

(N0 mode l.)-

3 Sheets$heet I.

m: NQRFus Pass; 20.. PHOTILLITHQ. Msnmmon. p. c.

Patented Sent. 25.1900.

E. T. BUTLER.

FLOUR BOLTER. A imation filed Jan. 27, 1900.)

3 Sheets-Sheet 2.

(No Model.)

THE mums warms co, vuoTo-Lm o, msnmnmu. D. c.

No. 658,700. Patented Sept. .25, I900.

I E. T. BUTLER.

FLOUR BULTEB.

(Application filed Jun. 97, 1900.;

(No Model.) 3 Sheets-Sheet 3.

UNTTED STATES PATENT OFFICE.

ELI T. BUTLER, OF PHILADELPHIA, PENNSYLVANIA.

FLOUR-BOLTERL SPECIFICATION forming part of Letters Patent No. 658,700,dated September 25, 1900.

Application filed January 27, 1900. Serial No. 3,007. (No model.)

To to whom it may concern:

Be it known that I, ELI 'I. BUTLER, a citizen of the United States,residing at Philadelphia, in the county of Philadelphia and State ofPennsylvania, have invented new and useful Improvements inFlour-Bolters, of which the following is a specification.

My invention relates to improvements in fiour-bolters, and pertains to abolter having the construction and arrangement of parts which will befully described hereinafter, and particularly referred to in the claims.

The primary object of my invention is to provide an improved cloth-cleaner for bolters, the cleaning devices or mechanism adapted to be operatedby the movement of the bolterbox, whereby the cleaner will workconstantly as long as the machine is in operation.

The object of my invention also pertains to other details ofconstruction, which will be fully described hereinafter.

In the accompanying drawings, Figure 1 is a perspective View of amachine embodying my invention, the same being shown suspended in itsoperative position. Fig. 2 is a central transverse vertical sectionalview of Fig. 1. Fig. 3 is a side elevation of the machine, the centerportionof the box being broken away to exhibit an end view of the twocentral sections of the bolter-box. Fig. 4 is a vertical longitudinalsectional view of one of the cloth or sieve pans removed from thebolter-box, showing in dotted lines the operation of the cleaningmechanism or snapping-cords. Fig. 5 is an enlarged detached perspectiveview of one of the cloth or sieve pans, one side of the pan beingremoved. Fig. 6 is an end view of Fig. 4: looking toward that endcontaining the weighted cordsnapping members. Fig. 7' is a similar viewlooking at the opposite and outlet end of one of the cloth or sievepans, the view being shown partly in section.

Referring now to the drawings, A indicates the floor, and B the ceiling,of a room or compartment in which the bolter is placed.

0 is an elongated boltenbox which is sustainedat the lower edge of eachcorner of the box by the plurality of vertically-suspending flexiblerods D, which have their opposite and upper ends suitably connected tothe longitudinal beams E, the latter being conneoted with the ceiling ofthe room or with any other desired support. These suspending-rods D arepreferably composed of suitable flexible wood rods, though they may becomposed of other material without departing from the spirit and scopeof my invenshaft G is provided with a suitable bearing socket or sleeveI), having a peripheralgroove 0, into which the inner ends of asuitablenumber of adjustable bearing bolts or screws (1 project. These bolts orscrews 61 pass through the upper end of the standard F, near its upperend, and are made adjustable therein in the manner here shown or anyother desired way for the purpose of properly centering the verticalshaft G. Connected with the upper and projecting end of the shaft G is apulley H, which carries atits upperside a shallow cup-shaped member I.The pulley and the cup-shaped member are preferably cast integral, ashere shown, though this may be varied, as will be readily understood,with:

out departing in any manner from my invention. Projecting from thebottom of this cupshaped member I is a vertical socket J,the said socketbeing arranged eccen trically to the axis of the pulleyH and its shaftG. Secured to the under side of the center of the bolter-box O is aplate K, having a centrally-depending projection L extending within thesaid socket J and carrying a bearing-sleeve 6, having a pcripheralgroove f, with which the inner ends of adjustable bearing bolts orscrews 76 engage in the same manner as that described in respect to theshaft G. In this manner the depending projection L may be properlycentered within the socket J.

In operation a belt is passed around the pulley H from any desired powerand the pulley and its attachment revolved, which, owing to theeccentric position of the socket J, in which the depending proje tion L,carried by the under side of the bolter-box, is journaled, gives to thebolterbox a gyratory motion.

For the purpose of supplying oil to the bearings a pipe M passes throughthe holler-box G and has at its outer projecting end an oilcup N, theinner end of the said pipe extending into and communicating with avertical passage-way i, formed through the depending projection L, andthus establishing communication with the bearing of said projection.Communication is established to the bearing at the upper end of theshaft G, and consequently to the step'bearing at the lower end thereof,by means of a vertical passagewayj through the pulley H, the saidvertical passage-way communicating at its lower ends withlaterally-extending passage-ways 70, formed in the upper end of theshaft G, and the oil by centrifugal and capillary action will find itsway to and lubricate the bearing 6. In this way oil is fed to all of thebearings of the driving mechanism of the bolt-er.

Situated within the holler-box C are a series of horizontal andtransversely-arranged sieve or cloth pan sections 1, 2, 3, 4, 5, and 6,(see Fig. 3,) and each of these said transversely-arranged sections ofcloth or sieve pans is composed of a plurality of verticallyarrangedcloth or sieve pans P, Q, and B. These sieve or cloth pans arepreferably separate and are adapted to be readily removed and insertedwithin the bolter-box O, the said boltewbox being divided into theseveral sections 1., 2, b, 4, 5, and 6 by vertically and transverselyarranged partitions A, B, G, D, and E, making five partitions anddividing the bolter-box into six transversely-arranged chambers toreceive the sections of sieve or cloth pans. The numberof sections canof course be varied, as will be readily understood, without in anymanner departing from. the spirit of my in ven tion. Each of these sievepans consists of a rectangular frame 2-, carrying an inclined sieve orcloth 8, and all of the sieves or cloths of the pans of the severalsections are preferably arranged to decline in the samedirection, or, inother words, toward the same side of the bolter-box C. These frames orpans are of a length less than the width of the bolter-boX G for thepurpose of forming at one side of the box 0 the tailings chamber orspace if and at the opposite side the flour space or chamber 8, saidt-ailings and flour spaces or chambers being vertically arranged at therespective ends of the sieve or cloth pans and communicating with thebottom of the bolter-box C. At the inlet side of the bolter-box it isprovided with theinletopenings 9, communicating with the inlet ends ofthe sieve pans or cloths, and through which the material to be bolted ispassed, and both edges or sides of the bottom of the bolter-box O areprovided with the exit passages or openings 10 and 11. The openings 11communicate with the tailings passageway or chamber 2, and the openings10 comm n nicate,respectively,with the hour passageways or chambers 8,whereby the flour which has been bolted and the resulting tailings arekept separate, as will be readily understood. As before stated, thecloth or sieve pans consist of the rectangular frames 1-, and theseframes have tin or other suitable inclined bottoms 12, which incline inthe opposite direction to the inclination of the cloths or sieves, as iswell understood by those skilled in the art. y

The essential featu re of my present invention pertains to the cleaningmechanism, which I will now explain. Pivoted interme- .diate its edgesto one end of the sieve or cloth pans (preferably the inlet ends) arethe snapper-cords operating members G, which extend entirely across theend of the pans and have connected to their lower edges a suitablenumber of weights H, whereby the actuating members G are weighted attheir lower edges and adapted, therefore, to be oscillated upon theiraxis by the gyratory motion of the bolter-box, as will be readilyunderstood. The snapper or cleaning cords, wires, or silks I have oneend connected with the upper edge of the actuating members G, and thesecords are preferably passed through holes in a transversely-arrangedstationary bar J at the opposite end of the pan and are made continuousby loosely passing therethrough and carried backward to the opposite endof the pan and through the actuating member, thereby easily allowing aselfadjustment or tension of the cords throughout each of the pans. Thisinsures a uniform tension throughout all of the snapping cords, silks,or wires of each of the sieves or cloths, as will be readily understood,and which is a very desirable feature. By reference to Fig. 4 theoperation of these snapper-cords for the purpose of cleaning the sievesor cloths will be readily understood.

As the b'olter-box is given the gyratory motion in the manner beforedescribed the weighted actuated members G will cause the movement of thesnappercords, silks,or wires, as indicated in dotted and solid lines,Fig. at, thus knocking or rapping the sieve or cloth, and thus servingto clean it, which is readily understood by those skilled in the art andneed not be further and more specifically explained.

For the purpose of properly balancing the pulley H and the cup-shapedmember I, attached thereto, an adjustable weight K is situated therein,the said weight resting upon the bottom of the cup-shaped member, and anadjusting screw-rod L passes through the said weight from the outer edgeof the member I for the purpose of moving the weight therein, and thusaccomplishing a perfect balauce of the driving mechanism, the inner endof the adjustingmod L being seated in the socket J, as clearlyillustrated in Fig. 2.

Situated at the bottom of each of the transversely-arranged sections ofsieve-pans is a sheet-n'ietal cu t-oif slide g, movable in grooves inthe sides of the lower pans, and passing from the outside of thebolter-box O are the screw-rods h, having at their outer ends theoperating-handles '21, by means of which they are readily rotated. Thesescrew-rods pass through the threaded sockets 4, which project from thecenters of the sheet-metal slides g, and by means of which they areadapted to serve as cutoffs, as will be readily understood.

I am aware that it is not new to provide snapper-cords for the purposeof cleaning a bolter sieve or cloth; but so far as I know thesesnapper-cords have not been provided with actuating members constructedand arranged as herein shown and described,whereby the snapper-cords areautomatically operated by the motion of the bolter-box independent ofany positive actuating member or members.

Attention is directed to the fact that the pivotal points 20 of theoscillating board G are situated outside of a vertical line drawnthrough the center of the said board,whereby greater efliciency in theoperation of the device is accomplished, in that the placing of thepivot as shown causes a sudden lifting action upon the cords, whichincreases their efficiency By reference to Fig. 2 it will be noted thatthe bottom M of the several chambers is inclined toward oppositesides-that is, said bottom is made thickest or highest in the center.When the cut-oh? slide g is moved inward as far as the threaded rod willpermit, then the product of the lower sieve all goes to finished flour.When, however, the slide is drawn outward in the position shown in Fig.2, onehalf of the sieve is cut off, the product from that part of thesieve to be treated in the next section in order or in a special sectionfor that purpose. This slide is an important feature, as the material isdeprived of its flour as it advances from an upper to a lower sieve, andthe deleterious matter, which has been floating upon the sieve, becauseit is lighter or because of being a comparativelythick layer of flourparticles, now moves so close to the silk sieve that some will dropthrough, consequently specking the resultant tlour, and hence thefunction of the slide in cutting it off from the finished product.

- As shown by arrows in Fig. 2, the tailings of two sieves in operationpass down to the bottom of the box.

From the above description and the accompanying drawings it will benoted that all of the sieves are inclined in one direction and thatbeneath the sieves there are pans adapted to carry the flour and soalpedmaterial Where desired. It will also be noted that l have provided avery eflicient and improved mechanism for cleaning the sieves by meansof the cords hereinbefore explained.

I do notlimit myself to the exact arrangement of the pans between thesieves, for these can be readily varied by those skilled in the art forthe purpose of adapting the invention for use upon middlings or for usein awheatbreak, in which event, as is well understood by those skilledin the art, it would be necessary to provide one or more of the sieveswith silk of different. meshes, herebya part of the material would passthrough the upper sieve to the one below, while another portion of thematerial passing through the sieve would be passed out into theflour-receiving space or chamber. These variations are well understoodand can be readily made by those who are skilled in the art of millingand do not need to be here further shown or described. It will bereadily understood also that in a machine constructed as here shown anddescribed, where there are several separate sections in the bolting-box,one section can be arranged and constructed as awheatbreak section andanother as a middlingssection and each of the sections varied accordingto the work it is intended for them to perform; but in either event thesieves will all incline in the same direction, and in either event therewill be provided a slide for cutting off the lower sieve, and this slidewill be at either side, as may be desired, according to whether theparticular section is a wheat-break section or a middlings-section, asis well understood by those skilled in the art.

Having thus described my invention, what I claim, and desire to secureby Letters Patent, is

1. A bolter comprising a movable member carrying a sieve, means formoving the said member, a weighted vibratory member car-,

ried by the movable sieve member, and a snapper-cord connected at oneend to one side of the sieve memberand connected at its opposite end tothe said weighted vibratory member, whereby the movement of the sievemember causes an alternate tightening and slackening of the saidsnapper-cord through the vibration of the weighted member, substantiallyas described.

2. A bolter comprising a movable sieve member carrying a sieve, avibrating member pivoted between its upper and lower edges and carriedby the sieve member, the said vibratory member being weighted at oneside of its pivotal point, a snapper-cord connected to the weightedmember at the opposite side of the pivotal point, the opposite end ofthe snapper-cord being connected to the opposite end of the sievemember, the parts adapted to operate as described.

3. A bolter comprising a movable box, means for actuating the same, acloth or sieve carried by the said box, a Weighted snappercord-actnatingdevice pivoted between its up per and lower-edges extending across thesieve or cloth, and a cord passing back and forth from end to end of thecloth orsieve and connected with one end of the cord-actuating member,constituting a plurality of snappercords, whereby the cords areautomatically operated for cleaning the sieve or cloth by the movementof the bolter-box, substantially to as described.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing witnesses.

ELI T. BUTLER. Witnesses:

CHAS. W. DE MASS, WM. 1. MAUDE.

